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<p>Reports cases in Python 2 when a file contains non-ASCII characters and does not
  have an encoding declaration at the top.</p>
<p><b>Example:</b></p>
<pre><code>
class A(object):
# &#8470;5
    def __init__(self):
        pass
</code></pre>
<p>In this example, the IDE reports a non-ASCII symbol in a comment and a lack of encoding
  declaration. Apply the proposed quick-fix to add a missing encoding declaration:</p>
<pre><code>
# coding=utf-8
class A(object)
# &#8470;5
    def __init__(self):
        pass
</code></pre>
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